FIELD: machine building.
SUBSTANCE: invention relates to lifting-and-conveying machine building, namely, to self-propelled load lifting machines. Remote support of load lifting machine, during machine operation on soils with insufficient bearing capacity as support plate, comprises a screw with a conical tip screwed into the ground and a helical surface elevation angle less than the friction angle of this surface on the ground. Remote support is equipped with a screw rotation drive providing its supply to the ground together with the feed drive without chips separation.
EFFECT: higher stability of hoisting machines operating on soils with low bearing capacity and prevention of accident.
1 cl, 1 dwg
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| HYDRAULIC MANIPULATOR SLEWING CIRCLE | 1998 |
|
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